| Statistic | Cathedraltown | Markham | Ontario |
| Population | 6,141 | 359,111 | 14,804,681 |
| Population density (sq km) | 2,945 | 1,675 | 15 |
| Median age | 37.1 | 40.7 | 40.9 |
| Male/Female ratio | 1.2:1 | 1.0:1 | 1.0:1 |
| Married couples | 85% | 82% | 71% |
| Families w/ kids at home | 62% | 58% | 46% |
| Speak English only | 85.0% | 84.1% | 86.1% |
| Speak French only | 0.1% | 0.0% | 0.3% |
| Data | Percent |
| Chinese | 79.5% |
| South Asian | 6.1% |
| West Asian | 3.0% |
| Multiple Visible Minorities | 1.9% |
| Korean | 1.6% |
| Data | Percent |
| Hong Kong | 23.5% |
| China | 23.1% |
| India | 1.8% |
| Iran | 1.7% |
| Taiwan | 1.6% |